Question

For developing strong bones and teeth, which two minerals will you take more in your diet?
a. phosphorus and sodium
b. Calcium and iron
c. Calcium and Vitamin D
d. Calcium and phosphorous

The device used for spinning cotton is
a. Takli
b. Spindle
c. Loom
d. Both a and b

Pneumatophores present in the roots of mangrove trees help them in
a. standing erect
b. breathing
c. reproducing
d. storing food

It is possible to increase the size of an object's shadow by
a. moving the object closer to the source
b. taking the object away from the source
c. moving the object far away from the screen
d. all of the above

Copper is a good conductor of electricity because-
a. it has many tightly bound electrons
b. it has many loosely bound electrons
c. it has many loosely bound protons
d. it has many loosely bound neutrons

Answer 1

Answer:

1 . b )

2 . b )

3 . b )

4 . a )

5 . b )